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What is the shallowest joist any type 16 or 12 oc that will span 14' in a residential house ll 40psf to replace badly damaged 6 wood joists?
Wiki User
∙ 9y ago
You are pushing it with a 2 x 8. 2 x 10 would be better. Make sure you double any joist supprting the roof.
Wiki User
∙ 9y ago
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How do you apply skim coat over damaged drywall?
If the damaged area is small then a skrim or jointing tape can be used, if the damaged area is large then it must be cut back to the joists, replaced, jointing tape applied then skimmed.
What is the cost to replace a rim joist?
In a typical home, the surface flooring (such as wood, carpet or vinyl) rests on a subfloor, which rests on joists -- a series of closely spaced parallel beams that support the floor or ceiling loads. Joists are usually supported by a sill (a long horizontal timber that's the lowest part of the framework and rests on the foundation) or a girder (a large beam that's the main support of the building). When replacing rotted floor joists it's important to be sure the girder and sill are still intact.Typical costs:If only a few joists are rotted primarily at the bottom, they can be repaired using a process known as "sistering" -- after the rot is cleaned away and the timber treated to prevent more problems, a new joist is laid beside the old one and fastened to it. Total costs will depend on the extent of the damage and the ease of access to the joists (through a basement or crawlspace), but in general sistering averages $100 -$300 or more per joist, and could run $1,000 -$3,000or more to repair a tilted, wavy or bouncy floor under an average room.If the floor joists are extensively damaged, it will be necessary to support the house with jacks while the joists are removed and replaced. In many cases, the sill may also be rotted and need replacing. Costs can run $10,000 -$30,000 or more for a typical home, depending on its size, the extent of the extent of the damage and the ease of access to install jacks and replace the timbers. If the damage is limited to just one section of floor joists, the project could run $5,000-$10,000.What should be included:Joists carry the weight of walls, furniture, people, appliances and anything else placed on the flooring they support. Usually wooden floor joists are 2"x8", 2"x10" or 2"x12" timbers -- their size depends on their length, the amount of "load" they're designed to carry and the building codes in effect when the house was constructed. The Family Handyman explains how joists work.If there is sufficient access through a basement or crawlspace, floor joists can be repaired or replaced without significant impact on the rest of the house. However, if there is limited access, all furniture and appliances must be removed from the affected area and the flooring and subfloor torn out. The Family Handyman explains how to "sister" damaged joists and HammerZone.com describes using a jack to raise a slightly sagging floor.Additional costs:Floor joists can be damaged by boring insects such as termites or extended exposure to water. Before you replace damaged floor joists, you must exterminate the insects or improve the drainage and ventilation so the problem won't reoccur. Costs will vary widely depending on the extent and nature of the original problem.Typically floor joists are repaired or replaced working from below, in a basement or crawl space. But if there's limited access to the joists, it may be necessary to work from above, removing the flooring and subflooring to repair or replace any damaged floor joists. Costs will depend on the extent of the damage and the type of replacement subflooring and flooring chosen.
What supports the load of floor joists in a large room?
Floor joists in standard U.S. residential construction are supported on the outer walls by a foundation, typically cement block or concrete. Between outer walls, support may be necessary in the form of a support beam resting on posts which transfers load to a concrete pier.
Can roof joists run in a different direction to floor joists?
Yes. Rafters and flloor joists do not have to run the same direction.
How do you Remove and replace sub flooring in mobile home?
You pull up the existing flooring with crowbars and hammers. Then smooth out the bits of wood and staples left sticking out of the joists. Hard work ! Replace with good quality plywood,same thickness when all joists are smooth and you have replaced plumbing, insulation or whatever else you went under to repair.
How do you put in new joists when you have old joists in the stone foundation?
Joists are support beams made of timber (wood), steel, or reinforced concrete. These beams support the floors of each level of a house or building, as well as the roof.You need to first identify any trimmer joists, those around staircases or chimneys. Second, and most importantly, you need to identify the "load bearing" joists. Third, remember you cannot remove joists without FIRST installing a temporary joist right beside the one you intend to remove. Consult the DIY article in Related Links.The main premise in joist replacement is to correctly re-support the house with new load-bearing joists, but to do so, you must support the load with temporary supports before putting in the permanent replacements. This is accomplished with jacks that support the house and temporary joists. I'm NOT an expert, BUT if I remember correctly, once you've supported the main load points, you insert a temporary joist beside the old or support it on a jack for every joist throughout the area in which you are working, (e.g. a basement). Then you replace the highest load-bearing joists first. Last, you'd replace the lowest-load-bearing joists. So it is a 3-step process: (1) insert temporary joist right beside the old (2) remove/replace the old with the permanent joist with a correct load-bearing wood/timber/steel/concrete (3) remove the temporary joist.If you are not a construction worker, be sure to consult an expert first to get information about how to calculate the "load" factors for the specific house. You may want to hire a contractor to do the job.NOTE: If you remove existing joists incorrectly, the risk is that the load in that area is higher than in other areas, so the structure could:be weakenedexert a "twisting" on the structure due to load forcesbe damaged or may collapse.Disclaimer: This answer is formulated from knowledge gained when working with a contractor during home construction, BUT not as a skilled worker. Therefore, please consult a professional for your safety and to hear a professional's advice / direction.
How much weight can your floor hold?
all depends how the floor is constructed and the size of the joists, the span of the joists, thickness of floorboards. Is it a concrete floor. Is it a 'live' load like people of furniture or a 'dead' load like an unsupported wall. It the house an old building or of recent construction. A residential standard suggests 40lb per square foot. Needs confirmation though
What is the strongest method for installing floor joists?
Joists resting upon sills and girders
How much weight can joists hold?
That depends upon the size of the joists & grade/species of wood
What size of floor joist should you use?
Different situations call for different joists. Generally floor joists are 2 x 12.
Difference in tji joists and bci joists?
Different manufacturers. Trusjoist McMillan (sp?) and Boise Cascade
How long does it take to water damage floor joists?
It depends on what timber your joists are,how much water has been involved and for how long the water has been affecting the joists.Stop the egress of water and let the joists dry out.Take it from there.
